33130332 has 36 divisors (see below), whose sum is σ = 84524440. Its totient is φ = 10940832.

The previous prime is 33130313. The next prime is 33130333. The reversal of 33130332 is 23303133.

33130332 is a `hidden beast` number, since 331 + 3 + 0 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298 + ... + 8145.

Almost surely, 2^33130332 is an apocalyptic number.

It is an amenable number.

33130332 is an abundant number, since it is smaller than the sum of its proper divisors (51394108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33130332 is a wasteful number, since it uses less digits than its factorization.

33130332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562 (or 8557 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 33130332 is about 5755.8954125314. The cubic root of 33130332 is about 321.1751453426.

Adding to 33130332 its reverse (23303133), we get a palindrome (56433465).

The spelling of 33130332 in words is "thirty-three million, one hundred thirty thousand, three hundred thirty-two".